The embé 2-way SwaddleOut™ safely helps baby transition from the Starter Collection to the next phase of development. Hidden snaps in the arm sleeves allow one or two arms in or out, giving baby the freedom to move and gradually adjust to sleeping “unswaddled”. Adjustable snaps on the chest allow you to customize for 3 different lengths - small 18"L, medium 21"L, and large 24"L. Designed for babies 3-6 months that weigh 12-18lbs.